Lubricating-cup.



PATENTED' NOV. 1, 1904.

M. H. B ORLAND.

LUBRIUATING CUP.

APPLICATION FILED NOV. 10,1903.

N0 MODEL.

awvm oz I #532 018 mm x mw Qvihwaaeo No. 773,538. 7 Patented November 1, 1904.

UNTTED STATES PATENT EEicE.

MATTHEW H. BORLAND, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE-HALF TO JOHN BORLAND, OF PROVIDENCE, RHODE ISLAND.

LU BRlCATING-CUP.

SPECIFICATION forming part of Letters Patent No. 773,538, dated November 1, 1904.

Application filed November 10, 1903. Serial No. 180,621. (No modelf:

To all whom it may concern: be attached. Extending upwardly from the 5 Be it known that I, lNIATTHEWI-I. BORLAND, bottom of said cup and on the inside thereof a resident of the city of Providence, in the is a hub D, having a hollow center 0, through county of Providence and State of Rhode which the lubricant may run out. The upper Island, have invented certain new and useful end of this hub D is a short distance below Improvements in Lubricating-Cups; and I do the top of the cup and is tapped out on its in- 5 5 hereby declare that the following is a full, side at E to receive the threaded end of the clear, and exact description thereof, reference spur F, which spur projects downwardly from being had to the accompanying drawings, and the inside of the cap or cover. The center of IO to the letters of reference marked thereon, this spur is chambered out at g. Into the which form a part of this specification. lower end of this chamber is forced the hollow 6 My invention relates to improvements in sleeve or tube H, (see Fig. 4,) the upper end lubricating-cups, and has for its object the proof which sleeve forms a seat on which the ball duction of a simple and inexpensive device for I rests. The oil or other lubricant is admitted 5 use on revolving parts of machinery for the to the hollow center of the spur through the purpose of feeding oil thereto and to positively hole K. The ball I serves as a valve for shut- 6 5 and automatically cut off the supply of oil ting off the supply of oil or other lubricant whenever the part ceases to revolve. from going into that part of the mechanism The further object of the invention is to conto which the cup may be attached. Said ballstruct the parts in such a way as to enable the valve is held in position on its seat by the tenvalve to remain on its seat at all times except sion of the spiral spring J upon it when the when the parts are revolving at a predeterpart to which it is attached is at rest. The mined speed. groove or slot m in the side of the spur serves \Vith these ends in view the invention conas a vent to supply the cup with air as the oil 25 sists of a lubricating-cup embodying novel fearuns out.

tures of construction and arrangement, which In the use of ordinary lubricatingcups are illustrated in the drawings and will be which aresecured to the revolving parts of hereinafter fully described and claimed. machinery it has heretofore been found that In the drawings, Figure 1 is a vertical crosswhen the part is stopped in a position to bring 3 section through the lubricating-cup, showing the cup in a horizontal position the oil would my improvements applied thereto. Fig. 2 is run out of the cup and flood the bearing ahorizontal section on lineQ 2 of Fig. 1. Fig. causing considerable annoyance and often- 3 is a detail sectional view of the cap with the times some damage. To avoid this difficulty, sleeve, ball, and spring removed. Fig. 4: is I have constructed a cup which will close 35 the sleeve, which is forced into the tubular automatically When the part to which it is atportion of the cap to form a seat for the balltached ceases to revolve. valve. The valve is a ball which is held to its seat Referring to the drawings, A is the outside by a light spring, the tension of which may shell of the lubricating-cup, havinga plurality be varied by varying the size of the wire.

4 of ribs B running lengthwise of said shell When the part is revolved at a given speed,

along its outside surface. These ribs may also the centrifugal force acting on the ball will be made short, as they are exclusively for the cause it to leave its seat and allow the oil to purpose of presenting convenient surfaces flow through the center channel into the bearonto which a wrench may fit to facilitate the ing.

45 screwing of the cup into the bearing. On the The quantity of oil to run out is controlled lower end of said shell is cast an extension O, in a great measure by the size of the air-duct which is threaded for the purpose of being m, as the oil cannot run out only as fast as the screwed into a tapped hole made to receive it air can come in to take its place. in that part of the machine to which it may My device is extremely simple and practical in construction as well as inexpensive to manufacture.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a lubricator-cup, a hollow hub within said cup, a cover for the top of said cup, a threaded hollow spur projecting from the under side of said cover and screwed into said hub, there being means for communicating from the passage-way in said hub to the in side of said cup to allow air to enter, a removable valve-seat held within said hollow spur, a valve to engage said seat and a spring acting on said valve to return it to its seat after having been thrown off by the rotation of said cup. I

2. In a lubricator, a cup, a hollow hub within said cup projecting upward from the bottom thereof, a cap having a spur projecting from its under side and removably secured in said hub, a valve, a sleeve within said spur forming a seat for said valve and a spring acting on said valve to return it to its seat after having been thrown off by centrifugal force.

3. In a lubricator, a cup, a hollow hub within said cup projecting toward the top from the bottom thereof, a cap having a threaded spur projecting from it, said spur being screwed into said hub a sleeve fixed within said spur forming a seat for the valve, a ballvalve to engage said seat and a spring acting on said ball-valve to return it to its seat after having been thrown off by centrifugal force.

4:. In a lubricator, a cup, a hub having a hollow center extending from the bottom toward the top of said cup,a cap for said cup, a spur having a hollow center projecting from said cap, said spur being screwed into said hub, a valve, a sleeve forced into the hollow center of said spur forming a seat for said valve, and a spring acting on said valve to return it to its seat after having been thrown off by centrifugal force.

In testimony whereof I have hereunto set my hand this 9th day of November,A. D. 1903.

MA TlHEl V H. BORLAN D.

\Vitnesses:

Howani) E. BARLow, FRANK A. Fos'run. 

